diff options
Diffstat (limited to 'src/drivers/uart')
| -rw-r--r-- | src/drivers/uart/uart8250io.c | 24 | ||||
| -rw-r--r-- | src/drivers/uart/uart8250mem.c | 24 | ||||
| -rw-r--r-- | src/drivers/uart/uart8250reg.h | 138 |
3 files changed, 93 insertions, 93 deletions
diff --git a/src/drivers/uart/uart8250io.c b/src/drivers/uart/uart8250io.c index f4a7b0ab74..f4f4d010a5 100644 --- a/src/drivers/uart/uart8250io.c +++ b/src/drivers/uart/uart8250io.c @@ -48,25 +48,25 @@ static int uart8250_can_tx_byte(unsigned base_port) { - return inb(base_port + UART_LSR) & UART_LSR_THRE; + return inb(base_port + UART8250_LSR) & UART8250_LSR_THRE; } static void uart8250_tx_byte(unsigned base_port, unsigned char data) { unsigned long int i = SINGLE_CHAR_TIMEOUT; while (i-- && !uart8250_can_tx_byte(base_port)); - outb(data, base_port + UART_TBR); + outb(data, base_port + UART8250_TBR); } static void uart8250_tx_flush(unsigned base_port) { unsigned long int i = FIFO_TIMEOUT; - while (i-- && !(inb(base_port + UART_LSR) & UART_LSR_TEMT)); + while (i-- && !(inb(base_port + UART8250_LSR) & UART8250_LSR_TEMT)); } static int uart8250_can_rx_byte(unsigned base_port) { - return inb(base_port + UART_LSR) & UART_LSR_DR; + return inb(base_port + UART8250_LSR) & UART8250_LSR_DR; } static unsigned char uart8250_rx_byte(unsigned base_port) @@ -75,7 +75,7 @@ static unsigned char uart8250_rx_byte(unsigned base_port) while (i-- && !uart8250_can_rx_byte(base_port)); if (i) - return inb(base_port + UART_RBR); + return inb(base_port + UART8250_RBR); else return 0x0; } @@ -84,22 +84,22 @@ static void uart8250_init(unsigned base_port, unsigned divisor) { DISABLE_TRACE; /* Disable interrupts */ - outb(0x0, base_port + UART_IER); + outb(0x0, base_port + UART8250_IER); /* Enable FIFOs */ - outb(UART_FCR_FIFO_EN, base_port + UART_FCR); + outb(UART8250_FCR_FIFO_EN, base_port + UART8250_FCR); /* assert DTR and RTS so the other end is happy */ - outb(UART_MCR_DTR | UART_MCR_RTS, base_port + UART_MCR); + outb(UART8250_MCR_DTR | UART8250_MCR_RTS, base_port + UART8250_MCR); /* DLAB on */ - outb(UART_LCR_DLAB | CONFIG_TTYS0_LCS, base_port + UART_LCR); + outb(UART8250_LCR_DLAB | CONFIG_TTYS0_LCS, base_port + UART8250_LCR); /* Set Baud Rate Divisor. 12 ==> 9600 Baud */ - outb(divisor & 0xFF, base_port + UART_DLL); - outb((divisor >> 8) & 0xFF, base_port + UART_DLM); + outb(divisor & 0xFF, base_port + UART8250_DLL); + outb((divisor >> 8) & 0xFF, base_port + UART8250_DLM); /* Set to 3 for 8N1 */ - outb(CONFIG_TTYS0_LCS, base_port + UART_LCR); + outb(CONFIG_TTYS0_LCS, base_port + UART8250_LCR); ENABLE_TRACE; } diff --git a/src/drivers/uart/uart8250mem.c b/src/drivers/uart/uart8250mem.c index 976bcb6949..79654f1786 100644 --- a/src/drivers/uart/uart8250mem.c +++ b/src/drivers/uart/uart8250mem.c @@ -35,7 +35,7 @@ static int uart8250_mem_can_tx_byte(unsigned base_port) { - return read8(base_port + UART_LSR) & UART_LSR_THRE; + return read8(base_port + UART8250_LSR) & UART8250_LSR_THRE; } static void uart8250_mem_tx_byte(unsigned base_port, unsigned char data) @@ -43,19 +43,19 @@ static void uart8250_mem_tx_byte(unsigned base_port, unsigned char data) unsigned long int i = SINGLE_CHAR_TIMEOUT; while(i-- && !uart8250_mem_can_tx_byte(base_port)) udelay(1); - write8(base_port + UART_TBR, data); + write8(base_port + UART8250_TBR, data); } static void uart8250_mem_tx_flush(unsigned base_port) { unsigned long int i = FIFO_TIMEOUT; - while(i-- && !(read8(base_port + UART_LSR) & UART_LSR_TEMT)) + while(i-- && !(read8(base_port + UART8250_LSR) & UART8250_LSR_TEMT)) udelay(1); } static int uart8250_mem_can_rx_byte(unsigned base_port) { - return read8(base_port + UART_LSR) & UART_LSR_DR; + return read8(base_port + UART8250_LSR) & UART8250_LSR_DR; } static unsigned char uart8250_mem_rx_byte(unsigned base_port) @@ -64,7 +64,7 @@ static unsigned char uart8250_mem_rx_byte(unsigned base_port) while(i-- && !uart8250_mem_can_rx_byte(base_port)) udelay(1); if (i) - return read8(base_port + UART_RBR); + return read8(base_port + UART8250_RBR); else return 0x0; } @@ -72,21 +72,21 @@ static unsigned char uart8250_mem_rx_byte(unsigned base_port) static void uart8250_mem_init(unsigned base_port, unsigned divisor) { /* Disable interrupts */ - write8(base_port + UART_IER, 0x0); + write8(base_port + UART8250_IER, 0x0); /* Enable FIFOs */ - write8(base_port + UART_FCR, UART_FCR_FIFO_EN); + write8(base_port + UART8250_FCR, UART8250_FCR_FIFO_EN); /* Assert DTR and RTS so the other end is happy */ - write8(base_port + UART_MCR, UART_MCR_DTR | UART_MCR_RTS); + write8(base_port + UART8250_MCR, UART8250_MCR_DTR | UART8250_MCR_RTS); /* DLAB on */ - write8(base_port + UART_LCR, UART_LCR_DLAB | CONFIG_TTYS0_LCS); + write8(base_port + UART8250_LCR, UART8250_LCR_DLAB | CONFIG_TTYS0_LCS); - write8(base_port + UART_DLL, divisor & 0xFF); - write8(base_port + UART_DLM, (divisor >> 8) & 0xFF); + write8(base_port + UART8250_DLL, divisor & 0xFF); + write8(base_port + UART8250_DLM, (divisor >> 8) & 0xFF); /* Set to 3 for 8N1 */ - write8(base_port + UART_LCR, CONFIG_TTYS0_LCS); + write8(base_port + UART8250_LCR, CONFIG_TTYS0_LCS); } void uart_init(int idx) diff --git a/src/drivers/uart/uart8250reg.h b/src/drivers/uart/uart8250reg.h index cdfbb1bc20..2720b8db10 100644 --- a/src/drivers/uart/uart8250reg.h +++ b/src/drivers/uart/uart8250reg.h @@ -21,88 +21,88 @@ #define UART8250REG_H /* Data */ -#define UART_RBR 0x00 -#define UART_TBR 0x00 +#define UART8250_RBR 0x00 +#define UART8250_TBR 0x00 /* Control */ -#define UART_IER 0x01 -#define UART_IER_MSI 0x08 /* Enable Modem status interrupt */ -#define UART_IER_RLSI 0x04 /* Enable receiver line status interrupt */ -#define UART_IER_THRI 0x02 /* Enable Transmitter holding register int. */ -#define UART_IER_RDI 0x01 /* Enable receiver data interrupt */ +#define UART8250_IER 0x01 +#define UART8250_IER_MSI 0x08 /* Enable Modem status interrupt */ +#define UART8250_IER_RLSI 0x04 /* Enable receiver line status interrupt */ +#define UART8250_IER_THRI 0x02 /* Enable Transmitter holding register int. */ +#define UART8250_IER_RDI 0x01 /* Enable receiver data interrupt */ -#define UART_IIR 0x02 -#define UART_IIR_NO_INT 0x01 /* No interrupts pending */ -#define UART_IIR_ID 0x06 /* Mask for the interrupt ID */ +#define UART8250_IIR 0x02 +#define UART8250_IIR_NO_INT 0x01 /* No interrupts pending */ +#define UART8250_IIR_ID 0x06 /* Mask for the interrupt ID */ -#define UART_IIR_MSI 0x00 /* Modem status interrupt */ -#define UART_IIR_THRI 0x02 /* Transmitter holding register empty */ -#define UART_IIR_RDI 0x04 /* Receiver data interrupt */ -#define UART_IIR_RLSI 0x06 /* Receiver line status interrupt */ +#define UART8250_IIR_MSI 0x00 /* Modem status interrupt */ +#define UART8250_IIR_THRI 0x02 /* Transmitter holding register empty */ +#define UART8250_IIR_RDI 0x04 /* Receiver data interrupt */ +#define UART8250_IIR_RLSI 0x06 /* Receiver line status interrupt */ -#define UART_FCR 0x02 -#define UART_FCR_FIFO_EN 0x01 /* Fifo enable */ -#define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */ -#define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */ -#define UART_FCR_DMA_SELECT 0x08 /* For DMA applications */ -#define UART_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */ -#define UART_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */ -#define UART_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */ -#define UART_FCR_TRIGGER_8 0x80 /* Mask for trigger set at 8 */ -#define UART_FCR_TRIGGER_14 0xC0 /* Mask for trigger set at 14 */ +#define UART8250_FCR 0x02 +#define UART8250_FCR_FIFO_EN 0x01 /* Fifo enable */ +#define UART8250_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */ +#define UART8250_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */ +#define UART8250_FCR_DMA_SELECT 0x08 /* For DMA applications */ +#define UART8250_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */ +#define UART8250_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */ +#define UART8250_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */ +#define UART8250_FCR_TRIGGER_8 0x80 /* Mask for trigger set at 8 */ +#define UART8250_FCR_TRIGGER_14 0xC0 /* Mask for trigger set at 14 */ -#define UART_FCR_RXSR 0x02 /* Receiver soft reset */ -#define UART_FCR_TXSR 0x04 /* Transmitter soft reset */ +#define UART8250_FCR_RXSR 0x02 /* Receiver soft reset */ +#define UART8250_FCR_TXSR 0x04 /* Transmitter soft reset */ -#define UART_LCR 0x03 -#define UART_LCR_WLS_MSK 0x03 /* character length select mask */ -#define UART_LCR_WLS_5 0x00 /* 5 bit character length */ -#define UART_LCR_WLS_6 0x01 /* 6 bit character length */ -#define UART_LCR_WLS_7 0x02 /* 7 bit character length */ -#define UART_LCR_WLS_8 0x03 /* 8 bit character length */ -#define UART_LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */ -#define UART_LCR_PEN 0x08 /* Parity enable */ -#define UART_LCR_EPS 0x10 /* Even Parity Select */ -#define UART_LCR_STKP 0x20 /* Stick Parity */ -#define UART_LCR_SBRK 0x40 /* Set Break */ -#define UART_LCR_BKSE 0x80 /* Bank select enable */ -#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */ +#define UART8250_LCR 0x03 +#define UART8250_LCR_WLS_MSK 0x03 /* character length select mask */ +#define UART8250_LCR_WLS_5 0x00 /* 5 bit character length */ +#define UART8250_LCR_WLS_6 0x01 /* 6 bit character length */ +#define UART8250_LCR_WLS_7 0x02 /* 7 bit character length */ +#define UART8250_LCR_WLS_8 0x03 /* 8 bit character length */ +#define UART8250_LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */ +#define UART8250_LCR_PEN 0x08 /* Parity enable */ +#define UART8250_LCR_EPS 0x10 /* Even Parity Select */ +#define UART8250_LCR_STKP 0x20 /* Stick Parity */ +#define UART8250_LCR_SBRK 0x40 /* Set Break */ +#define UART8250_LCR_BKSE 0x80 /* Bank select enable */ +#define UART8250_LCR_DLAB 0x80 /* Divisor latch access bit */ -#define UART_MCR 0x04 -#define UART_MCR_DTR 0x01 /* DTR */ -#define UART_MCR_RTS 0x02 /* RTS */ -#define UART_MCR_OUT1 0x04 /* Out 1 */ -#define UART_MCR_OUT2 0x08 /* Out 2 */ -#define UART_MCR_LOOP 0x10 /* Enable loopback test mode */ +#define UART8250_MCR 0x04 +#define UART8250_MCR_DTR 0x01 /* DTR */ +#define UART8250_MCR_RTS 0x02 /* RTS */ +#define UART8250_MCR_OUT1 0x04 /* Out 1 */ +#define UART8250_MCR_OUT2 0x08 /* Out 2 */ +#define UART8250_MCR_LOOP 0x10 /* Enable loopback test mode */ -#define UART_MCR_DMA_EN 0x04 -#define UART_MCR_TX_DFR 0x08 +#define UART8250_MCR_DMA_EN 0x04 +#define UART8250_MCR_TX_DFR 0x08 -#define UART_DLL 0x00 -#define UART_DLM 0x01 +#define UART8250_DLL 0x00 +#define UART8250_DLM 0x01 /* Status */ -#define UART_LSR 0x05 -#define UART_LSR_DR 0x01 /* Data ready */ -#define UART_LSR_OE 0x02 /* Overrun */ -#define UART_LSR_PE 0x04 /* Parity error */ -#define UART_LSR_FE 0x08 /* Framing error */ -#define UART_LSR_BI 0x10 /* Break */ -#define UART_LSR_THRE 0x20 /* Xmit holding register empty */ -#define UART_LSR_TEMT 0x40 /* Xmitter empty */ -#define UART_LSR_ERR 0x80 /* Error */ +#define UART8250_LSR 0x05 +#define UART8250_LSR_DR 0x01 /* Data ready */ +#define UART8250_LSR_OE 0x02 /* Overrun */ +#define UART8250_LSR_PE 0x04 /* Parity error */ +#define UART8250_LSR_FE 0x08 /* Framing error */ +#define UART8250_LSR_BI 0x10 /* Break */ +#define UART8250_LSR_THRE 0x20 /* Xmit holding register empty */ +#define UART8250_LSR_TEMT 0x40 /* Xmitter empty */ +#define UART8250_LSR_ERR 0x80 /* Error */ -#define UART_MSR 0x06 -#define UART_MSR_DCD 0x80 /* Data Carrier Detect */ -#define UART_MSR_RI 0x40 /* Ring Indicator */ -#define UART_MSR_DSR 0x20 /* Data Set Ready */ -#define UART_MSR_CTS 0x10 /* Clear to Send */ -#define UART_MSR_DDCD 0x08 /* Delta DCD */ -#define UART_MSR_TERI 0x04 /* Trailing edge ring indicator */ -#define UART_MSR_DDSR 0x02 /* Delta DSR */ -#define UART_MSR_DCTS 0x01 /* Delta CTS */ +#define UART8250_MSR 0x06 +#define UART8250_MSR_DCD 0x80 /* Data Carrier Detect */ +#define UART8250_MSR_RI 0x40 /* Ring Indicator */ +#define UART8250_MSR_DSR 0x20 /* Data Set Ready */ +#define UART8250_MSR_CTS 0x10 /* Clear to Send */ +#define UART8250_MSR_DDCD 0x08 /* Delta DCD */ +#define UART8250_MSR_TERI 0x04 /* Trailing edge ring indicator */ +#define UART8250_MSR_DDSR 0x02 /* Delta DSR */ +#define UART8250_MSR_DCTS 0x01 /* Delta CTS */ -#define UART_SCR 0x07 -#define UART_SPR 0x07 +#define UART8250_SCR 0x07 +#define UART8250_SPR 0x07 #endif /* UART8250REG_H */ |